#B33E28#B33E28

#B33E28 is a mid, vivid red. Relative luminance 0.132; OKLCH L 52.7% C 0.156 H 32.8°. Best body text is #FFFFFF at 5.77:1 contrast (WCAG AA passes).

Color values

HEX	#B33E28
RGB	rgb(179, 62, 40)
HSL	hsl(9, 63%, 43%)
HSV	hsv(9, 78%, 70%)
CMYK	cmyk(0%, 65.4%, 77.7%, 29.8%)
CIE-LAB	lab(43.04, 46.33, 38.43)
CIE-LCH	lch(43.04, 60.20, 39.68°)
OKLab	oklab(52.66% 0.1315 0.0846)
OKLCH	oklch(52.66% 0.156 32.8)
XYZ	xyz(20.6983, 13.1852, 3.4622)
Luminance	0.1318 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B33E28 #289DB3

analogous

#B32858 #B33E28 #B38328

triadic

#B33E28 #28B33E #3E28B3

tetradic

#B33E28 #58B328 #289DB3 #8328B3

square

#B33E28 #58B328 #289DB3 #8328B3

split-complementary

#B33E28 #28B383 #2858B3

monochromatic

#4F1B12 #812D1D #B33E28 #D55A43 #E08675

Accessibility & contrast

On white

5.77

#B33E28 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.64

#B33E28 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B33E28

5.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B33E28	#FFFFFF	#000000	##FFFFFF
##B33E28	1.00	5.77	3.64	5.77
#FFFFFF	5.77	1.00	21.00	1.00
#000000	3.64	21.00	1.00	21.00
##FFFFFF	5.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F5525

Deuteranopia (green-blind)

#7C6F24

Tritanopia (blue-blind)

#C51D3A

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #b33e28;
/* rgb */ color: rgb(179, 62, 40);
/* oklch */ color: oklch(52.7% 0.156 32.8);

Tailwind

colors: {
  custom: {
    50: '#d27963',
    500: '#b33e28',
    950: '#000000',
  },
}

SCSS

$custom: #b33e28;
$custom-light: #d27963;
$custom-dark: #000000;

JSON

{
  "hex": "#b33e28",
  "rgb": {
    "r": 179,
    "g": 62,
    "b": 40
  },
  "hsl": {
    "h": 9.496,
    "s": 63.47,
    "l": 42.941
  },
  "oklch": {
    "l": 0.52663,
    "c": 0.1563,
    "h": 32.8
  },
  "luminance": 0.13182
}

Semantic roles & 50–950 ramp

primary

#B33E28

secondary

#6FBAC8

accent

#CCE641

background

#FEF7F6

surface

#FCEEEB

border

#D5C9C6

text

#160905

muted

#847B7A

Preview Lab

Preview with #B33E28

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →